Granted Patent
Utility
US 5,380,295 · App. 07/988,267
Delivery apparatus with mechanism preventing rearward movement of a piston disposed therein
Inventor:
Rita D. Vacca
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Dec 14, 1992
Inventor
Rita D. Vacca
Assignee (at issue)
MallincKrodt Medical, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.